Lighting device



FIG. 1 is a front perspective view of a lighting device in accordance with the present invention;

FIG. 2 is a front side view thereof;

FIG. 3 is a right side view thereof, a left side view being a mirror image thereof;

FIG. 4 is a rear side view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The broken lines illustrate portions of the lighting device and form no part of the claimed design. 

CLAIM The ornamental design for a lighting device, as shown and described. 